Thread: When to use an X and when to use a 45-X

I go by very simple rule - the stroke must ensure that the full edge of the razor gets in contact with the hone with the same (as little as possible) pressure throughout it.
The stroke is whatever it takes to accomplish this.

I guess a marker may help you determine if you're not achieving the desired result, just check it after each stroke as it doesn't take much to remove it.